Discussion
Home ‣ Mechanical Engineering ‣ Steam Boilers and Engines Comments
- Question
There is always some steam left in the clearance space from the previous stroke. This steam left in the clearance space is called
Options- A. wet steam
- B. saturated steam
- C. superheated steam
- D. cushion steam
- Correct Answer
- cushion steam
- 1. In cross compounding, the cylinders are arranged
Options- A. side by side and each cylinder has common piston, connecting rod and crank
- B. side by side and each cylinder has separate piston, connecting rod and crank
- C. at 90° and each cylinder has common piston, connecting rod and crank
- D. at 90° and each cylinder has separate piston, connecting rod and crank Discuss
- 2. Throttle governing of steam engines is a method of controlling the engine output by varying
Options- A. volume of intake steam
- B. pressure of intake steam
- C. temperature of intake steam
- D. all of these Discuss
- 3. The Locomotive boiler has
Options- A. 137 fire tubes and 44 superheated tubes
- B. 147 fire tubes and 34 superheated tubes
- C. 157 fire tubes and 24 superheated tubes
- D. 167 fire tubes and 14 superheated tubes Discuss
- 4. The cut-off ratio is the reciprocal of expansion ratio,
Options- A. Correct
- B. Incorrect Discuss
- 5. The ratio of the clearance volume to the swept volume is called
Options- A. cut-off ratio
- B. expansion ratip
- C. clearance ratio
- D. none of these Discuss
- 6. The function of an eccentric is to provide __________ motion to the slide valve.
Options- A. reciprocating
- B. rotary Discuss
- 7. A __________ in a boiler is used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit.
Options- A. blow off cock
- B. fusible plug
- C. stop valve
- D. safety valve Discuss
- 8. The clearance in the engine cylinder
Options- A. increases the mean effective pressure
- B. increases the workdone
- C. decreases the efficiency of the engine
- D. all of these Discuss
- 9. The shell of the Cochran boiler is made hemispherical
Options- A. to give maximum space and strength
- B. to withstand the pressure of steam inside the boiler
- C. both (a) and (b)
- D. none of the above Discuss
- 10. The main object of a boiler trial is
Options- A. to determine the generating capacity of the boiler
- B. to determine the thermal efficiency of the boiler when working at a definite pressure
- C. to prepare heat balance sheet for the boiler
- D. all of the above Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: side by side and each cylinder has separate piston, connecting rod and crank
Correct Answer: pressure of intake steam
Correct Answer: 157 fire tubes and 24 superheated tubes
Correct Answer: Correct
Correct Answer: clearance ratio
Correct Answer: reciprocating
Correct Answer: fusible plug
Correct Answer: all of these
Correct Answer: both (a) and (b)
Correct Answer: all of the above
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.